Re: [CAD_CAM_EDM_DRO] Cad Cam question - ACE converter

Hi Keith,

I backplotted your code into Vector CAD/CAM.

I see a rounded lower left corner, and a rounded upper right corner. The lower
left corner is made up of line segments, the upper right is a single arc.

Yeah, I guess we need to see the DXF. Best to zip up the file.

Alan KM6VV


Keith Bucklitch wrote:

> Hi folks
> Following earlier messages today, I downloaded the ACE converter program
> and tried it out. I made a simple test file with my CAD program (TurboCAD
> v10) and saved it as a .dxf file. The drawing is basically a rectangle
> with a fillet at the bottom left corner and a notch cut out of the top
> right corner. I then imported the file into ACE converter and ran the
> conversion. The following G-code file was produced:
>
> N10 G00 Z0.1000
> N20 G00 X0.0323 Y0.0357
> N30 G01 Z0.0000
> N40 G01 X0.0527 Y0.0205 Z0.0000
> N50 G01 X0.0746 Y0.0074 Z0.0000
> N60 G01 X0.0976 Y-0.0035 Z0.0000
> N70 G01 X0.1215 Y-0.0120 Z0.0000
> N80 G01 X0.1462 Y-0.0182 Z0.0000
> N90 G01 X0.1714 Y-0.0220 Z0.0000
> N100 G01 X0.1953 Y-0.0231 Z0.0000
> N110 G01 X0.8499 Y-0.0231 Z0.0000
> N120 G01 X0.8499 Y0.4284 Z0.0000
> N130 G03 X0.5859 Y0.6924 I-0.3250 J-0.0610
> N140 G01 X-0.0625 Y0.6924 Z0.0000
> N150 G01 X-0.0625 Y0.2347 Z0.0000
> N160 G01 X-0.0613 Y0.2108 Z0.0000
> N170 G01 X-0.0576 Y0.1856 Z0.0000
> N180 G01 X-0.0514 Y0.1609 Z0.0000
> N190 G01 X-0.0428 Y0.1369 Z0.0000
> N200 G01 X-0.0319 Y0.1139 Z0.0000
> N210 G01 X-0.0189 Y0.0921 Z0.0000
> N220 G01 X-0.0037 Y0.0716 Z0.0000
> N230 G01 X0.0134 Y0.0528 Z0.0000
> N240 G01 X0.0323 Y0.0357 Z0.0000
> N250 G00 Z0.1000
>
> When I imported this into my CNC software - testing with both Mach 2 and
> KCam, the resultant shape has the bottom left fillet as required, but the
> top right corner is completely incorrect. If anyone wants the original
> .dxf file off-group, please contact me directly at:
> keith.bucklitch(at)which.net.
>
> Can anyone tell me what is causing the error in the G-code production and
> how it can be corrected? At this stage, I am not worried about the Z
> dimensions, as I can sort that out manually, but I do want the basic cut
> shape to be correct.
>
> Keith
>